Driving mechanism



Sept 18, 1956 F. H. RlCHTERKESSING DRIVING MECHANISM Filed Dec. 18, 1952 2 Sheets-Sheet 1 I 10 m m 13 .3/ 17 I! i 5 H I 244 5 L ASA i 2 28 DRUM swan? g1 311292111101? [4 4/2 4 l/cA/ gzzgss/uq attorney Filed Dec. 18. 1952 J T IHIHHHIJI I IJHHH HHH I.

2 Sheeis-Sheet 2 4 TIIIIIIIIIIIJIIJ I Junentor fz4A/z Z/CA/fEZZSs/UQ Gttorneg United States Patent DRIVING MECHANISM Frank H. Richterkessing, Louisville, Ky., assignor to W. M. Cissell Manufacturing-(10., Incorporated, Louisville, Ky.,,a corporation of Kentucky Application December 18, 1952, Serial No. 326,669

4 Claims. (Cl. 259-1) cation from a unitary supply therein for all moving elements thereof; (2) readily mounting thereto, and demounting therefrom a fabric processing drum of the overhanging type so that it can be installed or removed expeditiously therefrom by one person without disturbing the oil supply within the housing; (3) forestalling the egress or ingress of the fluids of each unit, in eifect, preventing the liquid oil of the gear set from creeping or leaking into the drum thereby damaging fabrics in process within the drum or the passage of the washer liquids therein from entering the gear housing or seeping onto the gear housing or onto the frame of the apparatus.

In this application I show and describe only the preferred embodiment of the invention simply by way of illustration of the practice thereof, as by law required. However, I recognize that the invention is capable of other embodiments and that the several details thereof may be modified in various ways all without departing from the invention. Accordingly, the drawings and description herein are to be considered as merely illustratrative and not as exclusive.

In the drawings:

Figure 1 is a plan view of the driving mechanism with a portion of the housing broken away to show the rotating members therein. Also shown are a portion of the dryer casing and a fragment of the dryer drum spider.

Figure 2 is a vertical view of Fig. 1 also With a portion of the housing removed to show the members disposed therein.

Figure 3 is a section of Fig. 2 along line 3, 3 primarily to disclose structure by which the high speed bearings are supplied continuously with the lubricant.

Figure 4 is an elevation along line 4, 4 of Fig. 2 to show a fragment of the spider on which the rotating drum is mounted.

Figure 5 is a vertical central section along 5, 5 of Fig. 1.

Figure 6 is a section along line 6, 6 of Fig. 5 to reveal the interior contour of the top portion of the housing that collects and distributes oil to the high speed roller bearings.

Character 10 designates a cylindrical housing having arms 11, 11 for attachment to channel 12 of the dryer casing, and a transversely disposed portion having an arched recess 13 in which is mounted a high speed worm 14 that enmeshes with gear 15 that is mounted on roller bearings 16, 16 which in turn are fitted into large heads 2,763,471 Patented Sept. 18, 1956 ice 17, 17 that close the ends of the housing. The worm is carried on roller bearings 18, 18 mounted respectively in closed. head 19 and open head 20. The cylindrical portion of all of these heads that project into the housing are equipped with grooves. into which are fitted ring type seals designated by the character 0 since these seals are known in the industry as, Q seals. Outwardly of the roller bearings, and concentric therewith, in heads 17 are closure seals 21 equipped with flexible lips that snugly embrace the adjacent faces of the hollow shaft 15A, integral with gear 15. Likewise a similar closure seal 22 surrounds the projecting shaft 23 of the Worm. Now, it should be noted that all of the openings of the housing that carry the heads and the bearings. therein are efifectively sealed against egress of oil, likewise thefiller aperture 24 and the drain 25 are sealed respectively with plugs 24A and 25A. while oil level aperture 26 is closed with fitting 26A.

Since one of the objectives of the incident invention is the provision for mounting and demounting of the drum by only one operator, a free fit must be provided between shaft 27 and the bore of hollow shaft 15A. Eachend of this shaft is threaded to receive cap screws 28 and .29. that engage respectively washers 28A, 29A, the: former contacts the vertical face of shaft 15A While the :latter engages the outer vertical face of drum spider 30. When the capscrews are:tightened, or made fast, the inner face of the spider binds oil sling disk 31 to the adjacent vertical face of shaft 15A. The latter is recessed to receive flange 31A of the disk. Thus, it will be perceived that when assembled for operation, gear shaft 15A, straight tubular shaft 27, disk 31 and the drum are in effect an integral whole and obviously rotate as a unit on roller bearings 16, 16.

Best seen in Fig. 5, vertical channel 12, a part of the case for the drum, has aperture 32 through which the hub of the spider projects. Attached to this channel is a trough 33, provided to catch any oil from the housing that may seep past the adjacent seal in case of failure. Between the channel and the spider is a block of highly absorbent material 34, provided to arrest seepage in the event of porous materials or loosened cap screws.

With the oil level in housing 10 determined by fitting 26A, roller bearings 16 and gear 15 are continuously bathed in oil. The gear carries oil to the worm which, under normal high speed rotation, throws it against the inner face of the arched recess 13. Prior to the inclusion of ribs 13A the oil formed in drops and fell back into the chamber of housing 10 without reaching the roller thrust bearings 18. These ribs are fashioned with a gradation downwardly from the center area of the arched recess to the extremities thereof, which terminate above the rotating cone of the roller thrust bearings, thereby delivering oil thereto, thusly, providing continuously a supply of oil to these vital members.

I claim:

1. Driving mechanism for a rotatable drum mounted within a casing comprising, a housing mounted upon the exterior of the casing; spaced bearings on said housing; a hollow tubular shaft mounted in said bearings, said casing having an opening in alignment with the bore of the tubular shaft; a driving element fixed to said tubular shaft between said bearings; a drum spider having an apertured hub with opposed clamping faces; a second shaft of substantially uniform diameter projecting through the opening in the casing, having one end freely and releasably received in the bore of said tubular shaft, and the other end in the aperture of said hub; a clamping Washer on the outer face of the hub, and a clamping washer on the outer end face of the tubular shaft; and threaded clamping means on each end of said second shaft in axially alignment therewith, for bringing the adjacent end faces of the tubular shaft and hub into engagement and thereby securing the shafts and hub together.

2. Driving mechanism for the rotatable drum of a drying tumbler or the like comprising, a stationary housing mounted exteriorly of the said drum; spaced bearings on said housing; a hollow tubular shaft mounted in said bearings; a driving element fixed to said tubular shaft between said bearings; a second shaft of substantially uniform diameter having one end attached to a drum spider, and the other end freely and releasably received in the bore of the tubular shaft; and removable clamping means on the said other end of the second shaft,

uncovered, and external of the tubular shaft for longitudinally clamping the opposing ends of the tubular shaft between the drum spider and the removable clamping means, thereby to permit uncoupling of the drum from the driven tubular shaft easily and rapidly by removing the readily accessible clamping means at the uncovered end of the second shaft.

3. Driving mechanism for the rotatable drum of a drying tumbler or the like comprising, a stationary housing mounted exteriorly of the drum; spaced bearings on said housing; a hollow tubular shaft mounted in said bearings; a driving element fixed to said tubular shaft between said bearings; a drum spider having an apertured hub with opposed clamping faces; a second shaft of substantially uniform diameter, having one end freely and releasably received in the bore of the said tubular shaft,

and the other end in the aperture of said hub; a clamping washer on the outer face of the hub, and a clamping washer on the outer end face of the tubular shaft; and threaded clamping means 'on each end of said second shaft for clamping each respective washer to the face of its adjacent member and bringing the adjacent faces of the tubular shaft and hub into engagement, thereby to secure the shafts and hubs together.

4. Driving mechanism for the rotatable drum of a drying tumbler or the like comprising, a stationary housing mounted exteriorly of the drum; spaced bearings on said housing; a hollow tubular shaft mounted in said bearings; a driving element fixed to said tubular shaft between said bearings; a drum spider having an apertured hub with opposed clamping faces; a second shaft of a length less than the combined axial lengths of said tubular shaft and said hub, having one end freely and releasably received in the bore of the said tubular shaft, and the other end in the aperture of said hub; a clamping washer on the outer face of the hub, and a clamping washer on the outer end face of the tubular shaft; and threaded clamping means on each end of said second shaft for clamping each respective washer to the face of its adjacent member and bringing the adjacent faces of the tubular shaft and hub into engagement, thereby to secure the shafts and hub together.

References Cited in the file of this patent UNITED STATES PATENTS 

